VLE460 steel plate grade analysis: "VL" stands for the abbreviation of "DNVGL", which is the standard certified by the two classification societies of DNV (Norway) and GL (Germany). VL E460 hull steel characteristics: good welding and other properties. It is suitable for repairing ships and main structures of naval vessels. Naval steel is required to have higher strength, better toughness, blast resistance and resistance to deep water collapse.
In terms of inventory, the recent arrival of new commercial use ABS A32 boat building steel resources is relatively small. Due to the high ordering cost, the weakening of merchants' purchasing enthusiasm, and the rapid production of steel mills, resulting in the shortage of some commercial use ABS A32 boat building steel specifications. On the whole, the market has a strong wait-and-see mood. The ex factory prices of steel mills are strong and some resources are in short supply. It is expected that commercial use ABS A32 boat building steel prices will continue the high consolidation operation tomorrow.
Both the cross rolling method and the extrusion method must first heat the tube blank or ingot, and the steel tube produced is called hot rolling tube. Steel pipes produced by hot working can sometimes be cold worked as required. There are two methods of cold working: one is cold drawing, that is, drawing the commercial use ABS A32 boat building steel steel pipe through the drawing die to make the steel pipe gradually thin and elongate; the other is cold rolling, which is the method of applying the hot rolling mill invented by the menesmann brothers to cold working. The cold working of commercial use ABS A32 boat building steel seamless steel pipe can improve the size accuracy and finish of steel pipe, and improve the mechanical properties of materials.
The diameter of large diameter seamless steel pipe is 325mm-1220mm, and the maximum thickness that can be achieved is 200 mm. The diameter of small diameter seamless steel pipe is generally less than 89mm. The processing technology of large diameter seamless steel pipe is hot rolling or hot expanding. There are many materials for large diameter seamless steel pipe, such as commercial use ABS A32 boat building steel, which can be processed and customized according to customer requirements. The large diameter seamless steel pipe is usually used in the chemical, petroleum, mechanical and other industries.
Leave a Message